Identification of the Elastic Properties of Isotropic and Orthotropic Thin-Plate Materials with the Pulsed Ultrasonic Polar Scan

The Pulsed Ultrasonic Polar Scan (P-UPS) is a powerful technique for characterizing anisotropic materials like fiber reinforced plastics. A time-domain analysis of the ultrasonic signals yields amplitude and time-of-flight polar diagrams that provide a fingerprint of the local stiffness properties. Though, this simple analysis ignores a lot of information contained in the ultrasonic signals. In this study, we propose to use the P-UPS technique in combination with the spectroscopic analysis of broadband pulses, to obtain plane wave transmission spectra for all in-plane polar angles. This allows us to combine on one hand the strengths of the P-UPS technique, that does not require a priori knowledge about the sample anisotropy, and on the other hand the frequency-domain analysis that utilizes information contained in the broadband pulses.

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Young-modulus determination of an orthotropic thin plate in the through-thickness direction

Journal of Applied Physics ◽

10.1063/1.370631 ◽

1999 ◽

Vol 85 (12) ◽

pp. 8490-8491 ◽

Cited By ~ 3

Author(s):

Sudook Kim ◽

Hassel Ledbetter

Keyword(s):

Thin Plate ◽

Young Modulus ◽

Thickness Direction ◽

Orthotropic Thin Plate

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Damage Signature of Fatigued Fabric Reinforced Plastics in the Pulsed Ultrasonic Polar Scan

Experimental Mechanics ◽

10.1007/s11340-014-9933-8 ◽

2014 ◽

Vol 54 (8) ◽

pp. 1467-1477 ◽

Cited By ~ 6

Author(s):

M. Kersemans ◽

I. De Baere ◽

J. Degrieck ◽

K. Van Den Abeele ◽

L. Pyl ◽

...

Keyword(s):

Reinforced Plastics ◽

Pulsed Ultrasonic ◽

Ultrasonic Polar Scan

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Transient thermal stress problem in an orthotropic, thin plate with a Griffith crack

Ingenieur-Archiv ◽

10.1007/bf02570604 ◽

1987 ◽

Vol 57 (3) ◽

pp. 175-181 ◽

Cited By ~ 2

Author(s):

N. Noda

Keyword(s):

Thermal Stress ◽

Thin Plate ◽

Griffith Crack ◽

Stress Problem ◽

Transient Thermal Stress ◽

Orthotropic Thin Plate ◽

Transient Thermal

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Nondestructive damage assessment in fiber reinforced composites with the pulsed ultrasonic polar scan

Polymer Testing ◽

10.1016/j.polymertesting.2014.01.001 ◽

2014 ◽

Vol 34 ◽

pp. 85-96 ◽

Cited By ~ 31

Author(s):

Mathias Kersemans ◽

Ives De Baere ◽

Joris Degrieck ◽

Koen Van Den Abeele ◽

Lincy Pyl ◽

...

Keyword(s):

Damage Assessment ◽

Fiber Reinforced Composites ◽

Reinforced Composites ◽

Fiber Reinforced ◽

Pulsed Ultrasonic ◽

Ultrasonic Polar Scan

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Symmetrical Buckling of a Series of Uniformly Loaded Parallel Struts Supported by Spot Connections to a Long Thin Plate

Journal of Applied Mechanics ◽

10.1115/1.4011596 ◽

1957 ◽

Vol 24 (4) ◽

pp. 531-536

Author(s):

J. L. Cutcliffe ◽

H. S. Heaps

Keyword(s):

Critical Load ◽

Rectangular Plate ◽

Elastic Properties ◽

Thin Plate ◽

Buckling Loads

Abstract The deflection in buckling of a long panel consisting of parallel stiffeners across a rectangular plate is found when equal buckling loads are applied to the ends of each stiffener. The critical load for buckling is found as a function of the elastic properties of the plate and the stiffeners for various spacings of stiffeners, and the number of spot connections to the plate.

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